Answered

• CDCS502: CDCS502PW: ESD data request

  

  yutaro hayashi

  Resolved

  Part Number: CDCS502 Hi Support Team. I am creating a delivery specification for this part number. In the Qualification Summary, the results of ESD-HBM and CDM are described as "See data sheet". However, the datasheet does not show the results of…

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• CDCS502: Input signal requirements

  

  Yusuke Mukuno

  Resolved

  Part Number: CDCS502 Hi expert, My customer is using CDCS502 for adding SSCG function. However they have an issue about amplitude for input signal. Their waveform meet VI threshold, but it didn't meet VIL/VIH. input signal Vdd = 3.3V …

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum

• CDCS502: XTAL In with a single ended clock

  

  May

  TI Thinks Resolved

  Part Number: CDCS502 Hi, Customer want to confirm if does CDCS502PW can drive XTAL In with a single ended clock? They happen to have a high quality 25 MHz reference that they could use for that part if the part can handle it. Regards, Maynard

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• CDCS502: Rf Feedback resistor

  

  Takashi Yamaguchi

  Resolved

  Part Number: CDCS502 Hi team, Does this device has internal feedback resistor? The crystal unit manufacturer's document states that it is necessary to insert a resistance value such as 1 MΩ in parallel with the crystal unit, but I think that it is…

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• CDCS502: Characteristics of Internal Capacitance & Tx-tal

  

  Zeming Kong

  Resolved

  Part Number: CDCS502 Hi there, My customer is evaluating CDCS502, and he needs to know the characteristics of internal 10pF load capacitance, like temp characteristics and tolerance. Also, what does the Tx-tal mean? It is descripted as crystal power…

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• CDCS502: SSC_SEL0/1 and FS-pin handling

  

  Takashi Yamaguchi

  Resolved

  Part Number: CDCS502 Hi team, The d/s mentions that SSC_SEL0/1 and FS-pin have internal pull-up. 1. When using at a high level, doesn't the customer need to connect an external resistor because there is the internal pull-up? 2. Is it okay to connect…

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• CDCS502: internal equivalent circuit for each PINs

  

  Yusuke Mukuno

  Resolved

  Part Number: CDCS502 Hi expert, Could you please share the internal equivalent circuit for each PINs(device : CDCS502) Customer want to know the input/output impendence for each IO pins. Especially, SSC_SEL 0,1 pins (internal pull-up: ??ohm),…

  • Resolved

  • over 6 years ago
  • Clock & timing
  • Clock & timing forum

• CDCS502: EMI reduction Crystal Oscillator replacement

  

  Feng bin Su

  TI Thinks Resolved

  Part Number: CDCS502 Other Parts Discussed in Thread: CDCS501 Hi team, Customer is using PCS3P7303AG for their EMI Reduction clock Ic as below figure. Can we use our CDCS502 to replace it ?Thanks.

  • over 6 years ago
  • Clock & timing
  • Clock & timing forum

• CDCS502: 27MHz Crystal Connected to Xin and Xout not Oscillating

  

  Andrew Payne72

  TI Thinks Resolved

  Part Number: CDCS502 I am trying to setup a simple crystal oscillator circuit utilizing the Abracon ABM11 27MHz Crystal and the TI CDCS502 clock gen chip. I have it connected in the configuration that will give me a 108MHz output with no clock skew…

  • over 8 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• RE: CDCS502: https://e2e.ti.com/support/clocks/f/48/t/56357

  

  MVD

  Resolved

  Sorry for the typos Cl = (Cx + Cstray)/2 Cl = 10pf Cstray = 20pF(CDCS502 load cap) 10pF = (Cx + 20pf)/2 Cx = (10*2) - 20 Cx = 0pF (For external Cap) But if: Cl = 18pf Cstray = 20pF + 4pF(CDCS502 load cap + paracitic track and Crystal…

  • over 9 years ago
  • Clock & timing
  • Clock & timing forum

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